Search a number
-
+
157159028 = 22133022289
BaseRepresentation
bin10010101111000…
…00111001110100
3101221201111122202
421113200321310
5310213042103
623332244032
73615554405
oct1127407164
9357644582
10157159028
11807919a4
1244770618
1326737610
1416c2d9ac
15dbe5988
hex95e0e74

157159028 has 12 divisors (see below), whose sum is σ = 296184420. Its totient is φ = 72534912.

The previous prime is 157159021. The next prime is 157159039. The reversal of 157159028 is 820951751.

157159028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 31225744 + 125933284 = 5588^2 + 11222^2 .

It is a junction number, because it is equal to n+sod(n) for n = 157158982 and 157159000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157159021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1511093 + ... + 1511196.

It is an arithmetic number, because the mean of its divisors is an integer number (24682035).

Almost surely, 2157159028 is an apocalyptic number.

It is an amenable number.

157159028 is a deficient number, since it is larger than the sum of its proper divisors (139025392).

157159028 is a wasteful number, since it uses less digits than its factorization.

157159028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3022306 (or 3022304 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 38.

The square root of 157159028 is about 12536.3083880383. The cubic root of 157159028 is about 539.6511555792.

The spelling of 157159028 in words is "one hundred fifty-seven million, one hundred fifty-nine thousand, twenty-eight".

Divisors: 1 2 4 13 26 52 3022289 6044578 12089156 39289757 78579514 157159028